yum-mirror/slang

Making it easier to work with shaders

git clone https://git.yummers.dev/yum-mirror/slang

Yong HeMiscellaneous backward autodiff fixes. (#2665)47715e625

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1//DIAGNOSTIC_TEST:SIMPLE:
2
3float nonDiff(float x)
4{
5    return x;
6}
7
8[ForwardDifferentiable]
9float f(float x)
10{
11    float val = 0;
12    if (x > 5)
13        val = x + 1;
14
15    [MaxIters(2)]
16    for (int i = 0; i < (int)x; i++) // OK
17    {
18    }
19
20    for (int i = 0; i < 5; i++) // OK
21    {
22    }
23
24    return val;
25}
26
27[ForwardDifferentiable]
28float m(float x)
29{
30    float x1 = no_diff x; // invalid use of no_diff here.
31    return no_diff f(x);  // no_diff on a differentiable call has no meaning.
32}
33
34float n(float x)
35{
36    return no_diff nonDiff(x); // no_diff in a non-differentiable function
37}